Hedronic Planet

A hedronic planet is a type of planet which began in a spherical shape, but due to a number of factors evolved into a prism with distinct edges and sides.

Causes
Hedronic planets are caused by a combination of up to 5 factors.
 * 1) Emergence of a black hole near the planet's star system
 * 2) Disruption of planet core's natural activity
 * 3) Magic
 * 4) Alchemical reactions
 * 5) Deitic punishment for not sacrificing enough small animals/not eating your vegetables